The simplest measeCot melting gold silver. copper. etc. is by treating them Ivith a little carbonate of soda trical conductivity is considerably less than that of COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS For which Letters Patent of the United States were Granted November 17 1885 AND EACH BEARING THAT DATE., scientific american, 1885-12-11

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The simplest measeCot melting gold silver. copper. etc. is by treating them Ivith a little carbonate of soda trical conductivity is considerably less than that of COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS For which Letters Patent of the United States were Granted November 17 1885 AND EACH BEARING THAT DATE., scientific american, 1885-12-11

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